/Engine/Plugins/Runtime/RigVM/Source/RigVMDeveloper/Public/RigVMCompiler/RigVMAST.h
Specialized cast for type checking for a CallExtern /FRigVMCallExternExprASTexpression will raise if types are not compatible
this expression cast toFRigVMCallExternExprAST
template<> const [FRigVMCallExternExprAST](API\Plugins\RigVMDeveloper\RigVMCompiler\FRigVMCallExternExprAST) * To() const